164 
1875, 
Tyrannus carolinensis, 
Biddlesex County, Mass. 
(June 1), 
A pair building in our orchard. Shortly after 
sunset 0 ^ery evening the male mounts into the air to a 
considerable height and then plunges and dashes about, as 
if crazy, uttering his characteristic cry incessantly! 
This performance which I have noticed before seems to 
correspond with the evening song-flight of the Oven -bird 
ad some other species. 
Sept.18. 
Five or six at Concord. 
